In reply to Ramblin dave:
> I suppose Holly from Red Dwarf might be a good substitute!
And Queeg? One computer projecting two different personalities to wind up the crew*.
Have you read any Alastair Reynolds?
He has all sorts of cyborgs and wotnot, but the Demarchists (Democratic Anarchists) strike me as a particularly interesting idea - they're a faction who have a system of government based on everyone having a neural implant, and everyone is being polled about everything, all the time - every issue is effectively decided by referendum. Once people are used to the implant they're mostly not consciously aware of it.
Edit to add:
* - Sorry. I hope that wasn't a spoiler for anyone who hasn't seen it yet.
Post edited at 14:20